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Related Concept Videos

General Transcription Factors01:30

General Transcription Factors

Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
Transcription Factors02:16

Transcription Factors

Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
RNA Splicing01:32

RNA Splicing

Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
RNA Polymerase II Accessory Proteins02:36

RNA Polymerase II Accessory Proteins

Proteins that regulate transcription can do so either via direct contact with RNA Polymerase or through indirect interactions facilitated by adaptors, mediators, histone-modifying proteins, and nucleosome remodelers. Direct interactions to activate transcription is seen in bacteria as well as in some eukaryotic genes. In these cases, upstream activation sequences are adjacent to the promoters, and the activator proteins interact directly with the transcriptional machinery. For example, in...
RNA Polymerase II Accessory Proteins02:36

RNA Polymerase II Accessory Proteins

Proteins that regulate transcription can do so either via direct contact with RNA Polymerase or through indirect interactions facilitated by adaptors, mediators, histone-modifying proteins, and nucleosome remodelers. Direct interactions to activate transcription is seen in bacteria as well as in some eukaryotic genes. In these cases, upstream activation sequences are adjacent to the promoters, and the activator proteins interact directly with the transcriptional machinery. For example, in...
Eukaryotic RNA Polymerases00:58

Eukaryotic RNA Polymerases

RNA Polymerase (RNAP) is conserved in all animals, with bacterial, archaeal, and eukaryotic RNAPs sharing significant sequence, structural, and functional similarities. Among the three eukaryotic RNAPs, RNA Polymerase II is most similar to bacterial RNAP in terms of both structural organization and folding topologies of the enzyme subunits. However, these similarities are not reflected in their mechanism of action.
All three eukaryotic RNAPs require specific transcription factors, of which the...

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Related Experiment Video

Updated: Jun 25, 2026

Efficient Production and Purification of Recombinant Murine Kindlin-3 from Insect Cells for Biophysical Studies
13:52

Efficient Production and Purification of Recombinant Murine Kindlin-3 from Insect Cells for Biophysical Studies

Published on: March 19, 2014

Talin 2 is a large and complex gene encoding multiple transcripts and protein isoforms.

Emmanuel Debrand1, Yasmine El Jai, Lorraine Spence

  • 1Department of Biochemistry, University of Leicester, Leicester, UK.

The FEBS Journal
|February 18, 2009
PubMed
Summary
This summary is machine-generated.

This study reveals a new promoter and alternative splicing in mammalian talin 2, uncovering novel truncated isoforms in the testis and kidney. These findings clarify talin 2 expression and function in cell adhesion.

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Last Updated: Jun 25, 2026

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Published on: June 20, 2016

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Genetics

Background:

  • Talins are crucial adaptor proteins connecting integrins to the actin cytoskeleton.
  • Talin 1 is vital for cell adhesion, but talin 2's function remains largely unknown.

Purpose of the Study:

  • To comprehensively analyze mammalian talin 2 gene expression and protein isoforms.
  • To elucidate the regulatory mechanisms and functional significance of talin 2 variants.

Main Methods:

  • Analysis of a mouse gene trap line for talin 2 expression patterns.
  • Investigation of alternative splicing and promoter usage in talin 2.
  • Characterization of talin 2 isoforms in different tissues and developmental stages.

Main Results:

  • Identification of a novel promoter upstream of talin 2, regulating most adult expression.
  • Discovery of truncated talin 2 isoforms in testis and kidney lacking the N-terminal domain.
  • Evidence for developmentally regulated expression of a short, testis-specific talin 2 isoform.
  • Detection of four tissue-specific alternative splicing events within the talin 2 coding region.

Conclusions:

  • Mammalian talin 2 exhibits complex transcriptional regulation and alternative splicing.
  • Novel talin 2 isoforms, particularly in reproductive tissues, suggest specialized roles.
  • Further research into talin 2 is warranted to understand its contribution to integrin-mediated processes.